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ESP32 Lora

WannaBAcoder·ArenaTimer·PCB Files/ESP32_Lora/ESP32_Lora/ESP32_Lora.kicad_pcb

ESP32 Lora PCB layout, top view — open source ESP32 board by WannaBAcoder

About the ESP32 Lora PCB

ESP32 Lora is an open source ESP32 PCB design by WannaBAcoder, published on GitHub. It is a 2-layer board measuring 86.6 × 54.5 mm, with 44 components from 25 distinct parts.

Its main chip is the ESP32-WROOM-32UE, from the ESP32 family. Other key parts include the C2991932, CP2102N-AXX-XQFN28, AP2112K-3.3 and CM1213A-02SR. By type, the board carries 14 capacitors, 13 resistors, 5 ICs, 4 connectors, 3 diodes and 2 transistors.

It belongs with the rf & radio, iot & wireless and robotics & motion designs in this gallery.

From the project

Open Source Area Timer for combat robotics

An open-source, ESP32-based event and match timer platform featuring wireless remote integration, with web interface.

Note: The local AP interface is identical to the network interface. If no external Wi-Fi network is available at your venue, you can run the timer in this standalone mode completely offline.

4. Station Mode (Optional): To connect the timer to an existing venue Wi-Fi network, use the configuration section at the bottom of the webpage to save your local SSID and Password.

ESP32 Lora, from the project README
From the project README

Main components on the ESP32 Lora

C2991932CP2102N-AXX-XQFN28ESP32-WROOM-32UEAP2112K-3.3CM1213A-02SR

ESP32 Lora bill of materials (BOM)

44 components, 25 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C2991932
Ai-Thinker RA-08H
U1
1
CP2102N-AXX-XQFN28
CP2102N-Axx-xQFN28
U3
1
ESP32-WROOM-32UE
U4
1
AP2112K-3.3
U5
1
CM1213A-02SR
CM1213A−02Sx
U902
2
SS8050
Q1, Q2
1
C2987682
Conn_Coaxial_Small
J2
2
CONN_01X15_SOCKET
Conn_01x15_Socket
J15, J16
1
USB_C_RECEPTACLE_USB2.0_14P
USB_C_Receptacle_USB2.0_14P
J114
1
JUMPER_2_BRIDGED
Jumper_2_Bridged
JP1
2
SW_Push
SW1, SW2
1
BAT760-7
D1
1
C965799
LED, Red
D10
1
C965807
LED, Blue
D12
5
C96446
10uF, 25V
C5, C7, C9, C14, C15
6
100NF
100nF
C6, C8, C10, C11, C12, C13
1
DNU
C
C16
1
GRM0335C1H4R3CA01
4.7pF
C17
1
2PF
2pF
C18
2
C17168
0 ohm
R5, R6
Show 5 more
QtyPartRefs
5
10K
10k
R10, R14, R15, R16, R17
1
C2930010
47.5K (1%)
R11
2
C25117
470, 1%
R12, R18
1
C43473
22.1K (1%)
R13
2
5.1K
R104, R105

ESP32 Lora design files

The KiCad project lives in the WannaBAcoder/ArenaTimer repository on GitHub; these links point at the commit this page was built from.

ESP32 Lora: common questions

What microcontroller does the ESP32 Lora use?

The ESP32 Lora is built around the ESP32-WROOM-32UE, from the ESP32 family.

How big is the ESP32 Lora PCB?

The ESP32 Lora measures 86.6 × 54.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32 Lora?

44 components, from 25 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the ESP32 Lora design files?

From the WannaBAcoder/ArenaTimer repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the ESP32 Lora design in my own project?

The repository has no license, so all rights stay with WannaBAcoder. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ESP32 Lora without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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